CN104253342B - Electric connector with cold events part - Google Patents
Electric connector with cold events part Download PDFInfo
- Publication number
- CN104253342B CN104253342B CN201410280312.2A CN201410280312A CN104253342B CN 104253342 B CN104253342 B CN 104253342B CN 201410280312 A CN201410280312 A CN 201410280312A CN 104253342 B CN104253342 B CN 104253342B
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- CN
- China
- Prior art keywords
- cable
- jacket portions
- core
- power cable
- main body
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
- H02G15/1826—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube
- H02G15/1833—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube formed of helically wound strip with adjacent windings, which are removable by applying a pulling force to a strip end
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/4922—Contact or terminal manufacturing by assembling plural parts with molding of insulation
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Cable Accessories (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
A kind of electric coupler component, the electric coupler component is configured to couple power cable and at least one other electric component and including outer cover body, the outer cover body includes oversheath, insertion portion and insulation inner housing, the insulation inner housing and is positioned between at least a portion of oversheath and insertion portion.The holding shell body forms at least one hole, and to receive power cable, oversheath includes cable and receives jacket portions and main body jacket portions.Cable receives at least a portion of jacket portions to be configured to and be received into the power cable cooperation in outer cover body.Cable receives jacket portions to include cold events material, and the cold events material is configured to regularly coordinate power cable, and the main body jacket portions include non-cold events material.Above-mentioned electric coupler component can realize desired performance, while balance cost.
Description
Technical field
The present invention relates to cable connector, such as load open circuit and dead point open circuit high pressure elbow type connector.More specifically,
Aspects described herein is related to a kind of cable connector, and the cable connector includes one or more collapsible parts, in order to
Realize and connected with the fixation waterproof of be connected power cable.
Background technology
Power cable elbow type connector is generally included with reference to the load open circuit connector that 15 and 25 kilovolts of switching devices use,
One end possessed by the elbow type connector is suitable for receiving power cable, and the possessed other end is suitable for receiving load open circuit
Liner insert or another switching device.It is suitable for receiving the end of liner insert to generally include elbow set, to provide and serve as a contrast
Cover the interference fit of molded flange on insert.
In some embodiments, elbow type connector may include the second opening, and second opening shape turns into be inserted with bushing
Part opening is relative, with order to which elbow type connector is connected into bushing, and passes through such as surge arrester, adapter plug etc
Other devices provide and lead to the conductive path of power cable.
Brief description of the drawings
Fig. 1 is the schematic sectional for showing the power cable elbow type connector according to embodiments described herein construction
Figure；
Fig. 2-7 is sectional view of the elbow type connector 1 shown in Fig. 1 during each stage for manufacturing and installing；
Fig. 8 is another embodiment for showing the power cable elbow type connector according to embodiments described herein construction
Schematic sectional view；And
Fig. 9-12 is sectional view of the elbow type connector shown in Fig. 8 during each stage for manufacturing and installing.
Embodiment
It is described in detail below referring to the drawings.Same reference numerals in different accompanying drawings indicate same or like component.
One or more embodiments described herein, which are related to such as elbow-type or t connector etc, has one or more
The power cable connector of cold events part.More precisely, connector may include shell, the Shell structure is electric into receiving electric power
The power cable is simultaneously fixed on connector by cable.
According to embodiment described herein, power cable receives body to include the oversheath formed by cold events material.
On the contrary, the oversheath of elbow-type body is then formed by traditional non-cold events material.In the fabrication process, power cable is received this
Body is connected in elbow-type body, and insert is positioned at into power cable receives in the combination oversheath of body and elbow-type body, and will
Cold events insulator is injected therebetween to produce connector.
Before the scene distribution of connector, tubulose, expansion dismountable core is inserted through cable and receives body.
Core portion configuration is into the axially open expansion for receive body (for example, through insulator and sheath) through power cable, to carry
The end prepared of power cable is inserted into connector for sufficient space.According to embodiment described herein core
The size in portion is enough to receive with various various sizes of power cables.
In the installation process of connector, the power cable prepared is inserted through core and is inserted into connector.
Once power cable is completely inserted into connector, just core is removed, so that power cable receives this physical efficiency inwardly to collapse
Contract so that power cable is fixed in connector.Connector can be attached to equipment bushing or similar dress via elbow-type body again
Put.
Cable described herein is formed by using with two different pieces of different cold events performance levels
Connector, the connector can realize desired performance, while balance cost.
Fig. 1 is that the signal for the power cable elbow type connector 100 for showing to be constructed according to embodiments described herein is cutd open
View.Fig. 2-7 is sectional view of the elbow type connector 100 during each stage for manufacturing and installing.As shown in figure 1, electric power
Cable elbow-shaped connector 100 may include 200 amperes of elbow type connector, and the elbow type connector has main casing 102, the main casing
End 104 and connector end 108 are received including cable, the cable receives end to be used to receive power cable 106 wherein,
And connector end includes opening, to receive the equipment bushing of such as dead point open circuit or load open circuit conversion bushing 110 etc
Or other high pressures or intermediate voltage terminal.
As illustrated, cable receives end 104 to extend along the main shaft of connector 100, and it may include to run through and be somebody's turn to do
Cable receives the hole 112 of end extension.In some embodiments, connector end 108 can receive end 104 relative to cable
Axial direction substantially perpendicularly protrude.Connector end 108 is included through the hole 114 that the connector end is formed, to
Receive equipment, bushing etc..As shown in figure 1, contact area 116 may be formed at the intersection in hole 112 and 114, to cause electric power
Cable 106 can be for example conductively connected in bushing 110 via bushing post (bushing stud) 118.
Power cable elbow type connector 100 may include conductive outer sheath 120, and the conductive outer sheath is for example by conductive (or half
It is conductive) synthetic rubber, the commonly referred to as EPDM (ethylene propylene diene rubber) of peroxide cure be made.According to described herein
Embodiment, oversheath 120 can be formed by two kinds of different materials and with two different parts.
Specifically, as shown in Fig. 2 oversheath 120 may include that cable receives jacket portions 202 and main body jacket portions
204.Cable receives jacket portions 202 to be formed by the EPDM or similar conductive polymeric material for being capable of cold events.On the contrary, such as
Described herein, main body jacket portions 204 may include non-cold events material.
As described herein, term " can cold events " refers to such as rubber or plastics etc material with resilience and elastic
Material, the material have sizable resilience.That is, when material stretches or expands, stretching, extension or expansion reason are being removed
When material can return back to almost original size.In certain embodiments, can be used non-with same or like elastic characteristic
EPDM materials, such as silicone.
As shown in Fig. 2 cable receive jacket portions 202 may include annular installation region 206, to main body jacket portions
Corresponding opening 208 in 204 matches.For example, the interior diameter of annular installation region 206 size can be set to it is substantially first-class
In or be slightly less than the overall diameter of main body sheath split shed 208.In some embodiments, annular installation region 206 can have axle
To length, the axial length is suitable in the manufacturing process of connector 100, provides and handed over the minimum of main body jacket portions 204
Repeatedly " D ".
Cable receives jacket portions 202 to may also include middle part mating area 210 and expansion entrance area 212.Such as Fig. 2 institutes
Show, direction is radially-inwardly tapered from installation region 206 axially rearward for middle part mating area 210.Mating area in the middle part of this
At narrowest part, the interior diameter included by the middle part mating area 210 is less than the interior diameter of the split shed 208 of main body sheath 204.Tool
Say, according to embodiment described herein, the most narrow interior diameter of mating area 210 is less than used minimum gauge electric power body
The overall diameter of cable.Therefore, as described below, in installation process, mating area 210 can be collapsed to the outer of power cable 106
On surface, so as to which cable is fixed on into connector 100 in a manner of watertight/airtight.
Expand entrance area 212 axially rearward direction from the radially outward flaring of middle part mating area 210.Therefore, expand
The interior diameter of entrance area 212 is more than the interior diameter of middle part mating area 210.Such a construction causes dismountable core (for example, core
Portion 502, as shown in Figure 5 and as described below) can during the final fabrication stage, be more easily forced to be inserted into cable and receive shield
Cover in part.
Fig. 1 is back to, as illustrated, in oversheath 120, power cable elbow type connector 100 may include conduction or half
Conductive insert 122 and insulation inner housing 124, the conducting or semiconducting insert surrounds power cable 106 and bushing 110
Coupling part, and insulate inner housing formed between oversheath 120 and insert 122.Inner housing 124 can further mould or
At least a portion in hole 112/114 is shaped to provide, and insert 122 then forms the remainder in hole 112/114.
In some embodiments, it is each by the material system for being capable of cold events in insert 122 and inner housing 124
Into.For example, each in insert 122 and inner housing 124 can be formed by the composition of the EPDM with different stage carbon black, and
Carbon black rank possessed by conductive inserts 122 is higher than the carbon black rank for the inner housing 124 that insulate.In other embodiments, insert
Part 122 can be by receiving jacket portions 202 and the similar EPDM materials for being capable of cold events of material as described above with used in cable
Material is formed, and the inner housing 124 that insulate is then by with resilience (such as, height resilience) polymer, rubber or epoxy resin material
Material is formed.
As shown in figure 3, in certain embodiments, the rear cable receiving portion of insert 122 can be provided with core receptacle
Divide 123.As described below, referring to Fig. 5, in the fabrication process, core receiving portion 123 may be configured to receive leading for supporting core
Draw end, to enable power cable 106 to be more easily received in insert 122 in the installation process of connector 100.
According to embodiment described herein, as shown in figure 3, in the manufacturing process of power cable elbow type connector 100,
Cable receives jacket portions 202 to be positioned in main part 204, and insert 122 is suspended (that is, relative to main body jacket portions
204 keep spaced relationship).In certain embodiments, additional molded components can be temporarily disposed in oversheath 120, in order to
The injection of insulation inner housing 124 and the formation of the mesopore 112 and 114 of connector 100.
As shown in figure 4, insulation inner housing 124 can be by being injected into the He of oversheath 120 by the insulating materials for being capable of cold events
Formed between conductive inserts 122.As shown in figure 4, in an example embodiment, at least a portion for the inner housing 124 that insulate
Formed and received in cable in jacket portions 202 and main body jacket portions 204 simultaneously, cable is thus received into jacket portions 202 forever
Main body jacket portions 204 are fixed on long.
As shown in figure 4, the injection or shaping of insulation inner housing 124 can also provide hole 114 and the junction surface with bushing 110.
For example, hole 114 is suitable for receiving the end of bushing 110 to be formed as including elbow set 115, the elbow is covered on offer and bushing 110
The interference fit of molded flange.
Fig. 1 is returned to, in an example embodiment, power cable elbow type connector 100 may include voltage detecting test point
Component 126, to sense the voltage in connector 100.Voltage detecting test point component 126 is configured so to external voltage inspection
The voltage related to connector 100 can be detected and/or measure by surveying device.
For example, as shown in figure 1, voltage detecting test point component 126 may include test point terminal 128, the test point terminal
In a part for insulation inner housing 124, and external screen shield 120 is extended through (for example, being located at main body jacket portions
In 204) in opening.In an example embodiment, test point terminal 128 can be by conducting metal or other conductive material shapes
Into.Then, test point terminal 128 is capacitively connected in conductive member in the mesopore 122 of connector 100 (for example, power cable
106)。
Test point cover lid 130 can sealingly engage with a part and external screen shield 120 for test point terminal 128.One
In individual embodiment, test point cover lid 130 can be formed by such as EPDM etc semiconductive material, so as to be installed when cover lid 130
When on test point terminal 128, electrical continuity is provided in the whole surface of connector 100.When not touching test point terminal
When 128, test point cover lid 130 can be arranged on test point component 126.
According to embodiment described herein the main casing 102 of power cable elbow type connector 100 may also include draw ring or drawing
Piece 132, in order to remove elbow by the suitable instrument of instrument of such as hot stick (hot stick) or lineman etc
Type connector 100.As shown in figure 1, draw ring 132 can be substantially with integratedly tying in the region in line of relative hole 114
Close in oversheath 120 (for example, main body jacket portions 202).
As shown in figure 5, (that is, it is being supplied to in-site installation work in the last fabrication stage of power cable elbow type connector 100
Before people), removable core 502 is inserted into connector 100, in order to which the scene of power cable 106 is inserted into connector 100
In.Because cable as described above receives the interior diameter of the middle part mating part 210 of jacket portions 202 to be less than power cable 106
Overall diameter, thus removable core 502 is used to expand hole 112, and jacket portions are received in order to which power cable is inserted into cable
In.
As shown in figure 5, an embodiment of removable core 502 includes being wound into the nylon or polypropylene rope of tubular structure
Rope or perforation or nylon/polypropylene pipe fittings with indentation, above-mentioned rope or pipe fitting there is uniform interior diameter and overall diameter,
Thus coil 504 that is multiple adjacent or being folded is produced.These adjacent coils 504 are moulded or are linked together, to keep
Support the tubular structure of core 502.Although adjacent coil 504 is preferably linked together before connector 100 is inserted into,
But coil 504 can also separate, such as perforation or indentation, and in order to remove core 502 from connector 100 afterwards, this is for example hereafter
It is described.However, as shown in figure 5, in the state of formed or connection, core 502 is provided with enough rigidities of structure, by tubulose
Core 112 is maintained at radial-expansion condition.
In the manufacturing process of connector 100, core 502 can be forced to be pressed into or be inserted into hole 112, cause connector
100 each several part is expanded in order to receive power cable 106.More precisely, can be by the guide end 506 of core 502 at the beginning
The expansion entrance area 212 for receiving jacket portions 202 with cable coordinates.Then, core 502 can be promoted to enter cable and receive shield
In the hole 112, insulation inner housing 124 and the insert 122 that cover part 202.More precisely, as shown in figure 5, core 502 can
It is configured to coordinate with the core receiving portion 123 of insert 122.
For the ease of removing core 502, guide end 506 can be provided with pulling-on piece 508, before the pulling-on piece is connected in core 502
Lead circle 504.When it is desirable that removing core 502, setter stretchy pulling-on piece 508, coil 504 is thus caused to unclamp, until whole
Untill individual coil 502 all unclamps and can removed from connector 100.As described below, once core 502 is torn open from connector 100
Remove, insulation inner housing 124, insert 122 and cable receive the cold events characteristic of jacket portions 202 to cause connector
Cable 106 is fixed on connector 100 by 100 these collapse parts on cable 106.
In other embodiments, core 502 can have other constructions, such as fiberglass-reinforced plastic is strong to improve its
Degree or solid (for example, the non-threaded shape) core of multi-part, the multi-part solid core are configured to be separated from each other in order to from hole
112 remove.
As shown in Figures 6 and 7, then the end prepared of power cable 106 and bushing post 118 can be respectively received in core
In 502/ hole 112 and hole 114.For example, the front end of power cable 106 can be by being connected to conductive spade group by power cable 106
It is prepared by part (conductor spade) 602.More precisely, conductive spade component 602 may include rear hermetic unit 604,
Pressure joint part 606 and spade part 608.
Rear hermetic unit 604 may include the insulating materials of the part around power cable 106.When conductive spade component
602 when being positioned in hole 112, and after core 502 is removed, cable receives the middle part mating part 210 of jacket portions 202
It can coordinate with rear hermetic unit 604 with the hole 112 in hermetically sealed connector 100.
Pressure joint part 606 may include substantially cylindrical conductive component, and the conductive component is configured to electric power electricity
The center conductor of cable 106 is received wherein.When inserting center conductor, pressure joint part 606 can crimp or otherwise
It is fixed on center conductor.
Spade part 608 be connected in electrically conductively pressure joint part 606 or with the pressure joint part integral, and
And can axially it be stretched out from the pressure joint part.For example, in some embodiments, spade part 608 can be with pressure joint
Part 606 is integrally formed, and is made up of the conducting metal of such as steel, brass, aluminium etc.As shown in fig. 6, spade part
608 include hole 610, and the hole extends vertically through the spade part, to coordinate the end of bushing post 118.In some implementations
In example, hole 610 includes negative thread, and the end of bushing post 118 includes corresponding pin thread.
As shown in fig. 7, in installation process, power cable 106 is inserted through core 502 and is inserted into hole 112, and spade
Part 608 is extended in the contact area 116 of connector 100.Then, bushing post 118 may be received in hole 114 and and spade
Part 608 coordinates, and bushing post 118 is conductively connected in power cable 106.
Once power cable 106 has been fixedly attached to bushing post 118 or bushing 110, just can be in the manner described above
(for example, pulling pulling-on piece 508 to unwind the coil 504 of core 502) removes core 502.After core 502 is removed, core
The cold events part for the connector 100 that portion 502 expands can collapse (for example, being back to state before their expansion and/or collapsing
To even more small size/shape), so as to be coordinated in a manner of airtight and watertight with the power cable 106 in connector 100.
For example, the core receiving portion 123 of middle part mating part 210, the rear portion for the inner housing 124 that insulate and insert 122 is all
It may be configured to be collapsed to after core 502 is removed on the rear hermetic unit 604 (for example, external insulation device) of power cable 106.
Conversely, because main body jacket portions 204 are not formed by the material for being capable of cold events, thus main body sheath can be realized
The rigidity increase of part 204 and manufacturing cost reduce, higher so as to be produced between the elbow set 115 in bushing 110 and hole 114
Tightening force put on interference frictional fit.
Fig. 8 is that the signal for the power cable elbow type connector 800 for showing to be constructed according to embodiments described herein is cutd open
View.Fig. 9-12 is sectional view of the elbow type connector 800 during each stage for manufacturing and installing.As shown in figure 1, electric power
Cable elbow-shaped connector 100 may include 600 amperes of elbow type connector, and the elbow type connector has main casing 802, and the connection
Device includes cable and receives end 804 and the T-shaped end 807 of connector, and the cable receives end to be used to power cable 806 being received in
Wherein, and the T-shaped end of connector includes relative hole 808/810, to receive such as dead point open circuit or load open circuit conversion lining
Equipment bushing, insulated plug, tension discharge device or other high pressures or intermediate voltage terminal of set 110 etc.
As illustrated, cable receives end 804 to extend along the main shaft of connector 800, and it may include to run through and be somebody's turn to do
Cable receives the hole 812 of end extension.In some embodiments, the opening 808/810 of the T-shaped end 807 of connector is substantially
The axial direction for receiving end 804 from cable in opposite direction vertically protrudes.Contact area 816 may be formed at hole 812,808
And 810 intersection, to enable power cable 806 conductively connected in the equipment connected (for example, being connected to T-shaped end
The equipment in portion 807).
Power cable elbow type connector 800 may include conductive outer sheath 820, and the conductive outer sheath is for example by conductive EPDM shapes
Into.According to embodiment described herein, oversheath 820 can be formed by two kinds of different materials and with two different parts.
Specifically, as shown in figure 9, oversheath 820 may include that cable receives jacket portions 902 and main body jacket portions
904.Cable receives jacket portions 902 to be formed by the EPDM or similar conductive polymeric material for being capable of cold events.On the contrary, such as
Described herein, main body jacket portions 904 may include non-cold events material.
As shown in figure 9, cable receive jacket portions 902 may include annular installation region 906, to main body jacket portions
Corresponding opening 908 in 904 matches.For example, the interior diameter of annular installation region 906 size can be set to it is substantially first-class
In or be slightly less than the overall diameter of main body sheath split shed 908.In some embodiments, annular installation region 906 can have axle
To length, the axial length is suitable for providing the minimum friendship with main body jacket portions 904 in the manufacturing process of connector 800
Repeatedly.
Cable receives jacket portions 902 to may also include middle part mating area 910 and entrance area 912.In as shown in figure 9,
Direction is radially-inwardly tapered from installation region 906 axially rearward for portion's mating area 910.Most narrow portion of mating area in the middle part of this
Office, the interior diameter included by the middle part mating area 910 are less than the interior diameter of the split shed 908 of main body sheath 904.Specifically
Say, according to embodiment described herein, the most narrow interior diameter of mating area 910 is less than used minimum gauge power cable
Overall diameter.Therefore, as described below, in installation process, mating area 910 can be collapsed to the outer surface of power cable 806
On, so as to which cable is fixed on into connector 800 in a manner of watertight/airtight.
As shown in figure 9, entrance area 912 includes inner surface, the inner surface axially rearward direction from middle part mating area
910 is radially outward gradually oblique.Therefore, the interior diameter for expanding the rear end of entrance area 912 is more than the interior of middle part mating area 910
Diameter.Such a construction causes dismountable core (for example, core 1102, as shown in figure 11 and as described below) finally to manufacture
More easily it is forced to be inserted into cable receiving jacket portions 902 during stage.
Fig. 8 is back to, as illustrated, in oversheath 820, power cable elbow type connector 800 may include conduction or half
Conductive insert 822 and insulation inner housing 824, the conducting or semiconducting insert surround contact area, and the inner casing that insulate
Body is formed between oversheath 820 and conductive inserts 822.As shown in Figure 10, inner housing 824 can be further molded or formed as
At least a portion in hole 808,810 and 812 is provided, and insert 822 then forms hole 808-812 remainder.
In some embodiments, it is each by the material system for being capable of cold events in insert 822 and inner housing 824
Into.For example, each in insert 822 and inner housing 824 can be formed by the composition of the EPDM with different stage carbon black, and
Carbon black rank possessed by conductive inserts 822 is higher than the carbon black rank for the inner housing 824 that insulate.In other embodiments, insert
Part 822 can be by receiving jacket portions 902 and the similar EPDM materials for being capable of cold events of material as described above with used in cable
Material is formed, and the inner housing 824 that insulate is then by with resilience (such as, height resilience) polymer, rubber or epoxy resin material
Material is formed.
As shown in Figure 10, in certain embodiments, the rear cable receiving portion of insert 822 can be provided with core receptacle
Divide 823.As described below, referring to Figure 11, in the fabrication process, core receiving portion 823 may be configured to receive supporting core
1102 guide end, to enable power cable 806 to be more easily received in insert in the installation process of connector 100
In 822.
According to embodiment described herein, as shown in Figure 10, in the manufacturing process of power cable elbow type connector 800
In, cable receives jacket portions 902 to be positioned in main part 904, and insert 822 is suspended (that is, relative to main body sheath section
904 are divided to keep spaced relationships).In certain embodiments, additional molded components can be temporarily disposed in oversheath 820, so as to
In the injection of insulation inner housing 824 and the mesopore 808-812 of connector 800 formation.
In certain embodiments, insulate inner housing 824 can be by being injected into oversheath by the insulating materials for being capable of cold events
Formed between 820 and conductive inserts 822.As shown in Figure 10, in an example embodiment, insulation inner housing 824 is at least
A part is formed and received in cable in jacket portions 902 and main body jacket portions 904 simultaneously, and cable thus is received into jacket portions
902 are permanently fixed to main body jacket portions 904.
As shown in Figure 10, insulate inner housing 824 injection or shaping also can be in the opening 808 and 810 of T-shaped end 807
Engaging zones are provided at respective end.For example, the opening 808 and 810 in inner housing 824, which can be respectively facing elbow, covers 813 and 815 shapes
Into thus providing the interference fit with the molded flange of institute's connection member (for example, bushing, connector etc.).
As shown in figure 11, (that is, it is being supplied to in-site installation in the last fabrication stage of power cable elbow type connector 800
Before worker), removable core 1102 is inserted into connector 800, in order to which the scene of power cable 806 is inserted into connector
In 800.Because cable as described above receives the interior diameter of the middle part mating part 910 of jacket portions 902 to be less than power cable 806
Overall diameter, thus removable core 1102 be used for expand hole 812, in order to by power cable be inserted into cable receive sheath section
In point.
As shown in figure 11, core 502 similarly as described above, removable core 1102 may include nylon or PA tube
Part, the pipe fitting is perforated in a spiral manner or indentation is with including multiple adjacent coils 1104.In the manufacturing process of connector 800
In, core 1102 can be forced to be pressed into hole 812, to cause the expansion of each several part of connector 800 in order to receive power cable
806.More precisely, the guide end 1106 of core 1102 can be made to receive the entrance area of jacket portions 902 with cable at the beginning
912 coordinate.Then, can promote core 1102 enter cable receive jacket portions 902 hole 812, insulation inner housing 824 and
In insert 822.More precisely, as shown in figure 11, core 1102 may be configured to the core receiving portion with insert 823
822 coordinate.
For the ease of removing core 1102, guide end 1106 can be provided with pulling-on piece 1108, and the pulling-on piece is connected in core 1102
Leading coil 1104.When it is desirable that removing core 1102, setter stretchy pulling-on piece 1108, thus cause the pine of coil 1104
Open, untill whole coil 1102 all unclamps and can be removed from connector 800.
In other embodiments, core 1102 can have：Other constructions, such as fiberglass-reinforced plastic is to improve it
Intensity；Solid (for example, the non-threaded shape) core of multi-part, the multi-part solid core are configured to be separated from each other in order to from hole
812 remove.
As shown in figure 12, the end prepared of power cable 806 may be received in the hole 812 of core 1102/.It is for example, electric
The front end of power cable 806 can be by being connected to conductive spade component 1202 to prepare by power cable 806, the conductive spade component
Similar to the conductive spade component 602 described above with reference to Fig. 6 and 7, but other constructions of power cable end are also applicable
In embodiment described herein.In installation process, power cable 806 is inserted through core 1102 and is inserted into hole 812
In.
Once power cable 806 is fully inserted into connector 800 and/or is connected to such as via hole 810 or 812
One or more of the other device of bushing etc, just can be in the manner described above (for example, by pulling pulling-on piece 1108 to unwind
Coil 1104) remove core 1102.After core 1102 is removed, the cold events portion for the connector 800 expanded by core 1102
Dividing can collapse (for example, being back to state before their expansion), so as in a manner of airtight and watertight and in connector 800
Power cable 806 coordinates.For example, the core of middle part mating part 910, the rear portion of insulation inner housing 824 and insert 822
Portion's receiving portion 823 all may be configured to be collapsed to a part for power cable 806 after core 1102 is removed (for example, external insulation
Device) on.
Conversely, because main body jacket portions 904 are not formed by the material for being capable of cold events, thus main body sheath can be realized
The rigidity increase of part 904 and manufacturing cost reduce, so as to be produced in connector 800 and being connected between the equipment of T-shaped end
Raw firmer interference frictional fit.
The description of foregoing exemplary embodiment provides explanation and description, but is not intended to exclusiveness or will be described herein
Embodiment be restricted to disclosed precise forms.According to teaching above, various modifications and variations are possible or can be from
The practice of each embodiment obtains.For example, although described above is exemplary 200 ampere and 600 amperes of connector, sheet
Embodiment described by text can also combine the other devices including 15kV, 25kV or 35kV of such as high-tension switch gear etc
Equipment be used together.
Although the present invention is described in detail above, the technology people for correlative technology field is clearly understood that
Member is it is apparent that spirit of the present invention without departing from the present invention can be changed.Can be to each of carry out form of the present invention, design or arrangement
Kind change is without departing from the spirit and scope of the present invention.Therefore, the description above is considered as exemplary, rather than restricted
, true scope of the invention is defined by the following claims.
Element, action or the guidance used in the description of the present application is not construed as being overcritical or essential to the present invention
, unless explicitly described.Moreover, as it is used herein, term " one " be intended to include it is one or more.In addition,
Term "based" means " being at least partially based on ", unless otherwise fairly setting out.
Claims (8)
1. a kind of elbow-type electric coupler component, the electric coupler component is configured to couple power cable and equipment bushing, and
Including：
Outer cover body, the outer cover body include oversheath, insertion portion, detachable expansion core and insulation inner housing,
The insulation inner housing is positioned between at least a portion of the oversheath and the insertion portion, and the insertion portion has
Core receiving portion, wherein, the outer cover body forms the first hole for receiving the power cable and described for receiving
Second hole of equipment bushing, wherein second hole communicates perpendicular to first hole and with first hole,
The oversheath includes：
Cable close to first hole receives jacket portions, and
Main body jacket portions close at least described second hole,
Wherein, the main body jacket portions are single parts, and by receiving the material of jacket portions to form different from cable,
Wherein, the cable receives at least a portion of jacket portions to be configured to and be received into the electric power electricity in the outer cover body
Cable coordinates,
Wherein, the cable receives jacket portions and the insulation inner housing each to include cold events material, the cold events material
Material is configured to regularly coordinate the power cable, wherein at least a portion of the insulation inner housing is positioned at the cable and connect
Receive in both jacket portions and the main body jacket portions, and the cable is can be received jacket portions be fixed to by its size
The main body jacket portions,
Wherein, the cable of the oversheath receives jacket portions to include mating area, and the internal diameter of the mating area is less than electric power electricity
The external diameter of cable,
Wherein, the main body jacket portions include non-cold events material, to ensure in the main body jacket portions and the equipment
There are enough tightening forces between bushing, and
Wherein, the cable of the oversheath receives jacket portions to include installation region, and the installation region is configured in the electricity
Cable is received to be coordinated at the junction surface between jacket portions and the main body jacket portions with the main body jacket portions,
Wherein, the detachable expansion core includes tubular element, and overall diameter possessed by the tubular element is more than described
The internal diameter of the core receiving portion of the interior diameter of mating area and the insert, the detachable expansion core is positioned at described
Cable is received in the core receiving portion of jacket portions and the insert, and is configured to receive the power cable passed through,
And
Wherein, the detachable expansion core is selectively received the core of jacket portions and the insert from the cable
Removed in portion's receiving portion, the mating area and the core receiving portion are configured to：When selectively will be described dismountable
Expansion core from the elbow-type electric connector remove when, can collapse and be sealed to the power cable being located therein.
2. elbow-type electric coupler component as claimed in claim 1, it is characterised in that the cable of the oversheath receives sheath section
Dividing includes mating area, and interior diameter possessed by the mating area is less than the overall diameter of the power cable.
3. elbow-type electric coupler component as claimed in claim 1, it is characterised in that the cable of the oversheath receives sheath section
Divide and be configured to receive detachable expansion core wherein,
Wherein, the detachable expansion core includes tubular element, and overall diameter possessed by the tubular element is more than described
The interior diameter of mating area, and the power cable that the detachable expansion core portion configuration passes through into receiving.
4. elbow-type electric coupler component as claimed in claim 3, it is characterised in that the tubulose of the detachable expansion core
Component is perforated with spiral pattern or indentation, receives jacket portions to remove from the cable to unwind.
5. elbow-type electric coupler component as claimed in claim 3, it is characterised in that the detachable expansion core includes drawing
Piece, the pulling-on piece are connected to the guide end of the core, in order to the unwinding of the core.
6. elbow-type electric coupler component as claimed in claim 1, it is characterised in that the insulation inner housing and the insertion section
Dividing each includes the material for being capable of cold events.
7. elbow-type electric coupler component as claimed in claim 1, it is characterised in that the cable receives jacket portions to include energy
Ethylene propylene diene rubber (EPDM) material of enough cold events, and the main body jacket portions include the material of non-cold events.
8. elbow-type electric coupler component as claimed in claim 1, it is characterised in that the connection including 200 amperes or 600 amperes
Device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361841100P | 2013-06-28 | 2013-06-28 | |
| US61/841,100 | 2013-06-28 | ||
| US14/280,114 US9444176B2 (en) | 2013-06-28 | 2014-05-16 | Electrical connector having cold shrink component |
| US14/280,114 | 2014-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104253342A CN104253342A (en) | 2014-12-31 |
| CN104253342B true CN104253342B (en) | 2018-02-13 |
Family
ID=50980248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410280312.2A Active CN104253342B (en) | 2013-06-28 | 2014-06-20 | Electric connector with cold events part |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9444176B2 (en) |
| EP (1) | EP2824787A3 (en) |
| JP (1) | JP6140654B2 (en) |
| CN (1) | CN104253342B (en) |
| AU (1) | AU2014202779B2 (en) |
| BR (1) | BR102014016102A2 (en) |
| CA (1) | CA2853015C (en) |
| MX (1) | MX341967B (en) |
| TW (1) | TWI593184B (en) |
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| CN104617447B (en) * | 2015-02-15 | 2017-08-29 | 中国工程物理研究院化工材料研究所 | Anti-high voltage connector plug, socket and manufacture method and electric connector |
| US9941616B2 (en) * | 2015-02-24 | 2018-04-10 | Thomas & Betts International Llc | Multi-piece jacket for separable connectors |
| WO2017006360A1 (en) * | 2015-07-05 | 2017-01-12 | Green Seas Ventures, Ltd | Plug-in connector |
| US9553374B1 (en) * | 2015-11-19 | 2017-01-24 | Tyco Electronics Canada Ulc | Electrical connectors and connection assemblies and methods including the same |
| US10522983B2 (en) | 2016-04-28 | 2019-12-31 | Novinium, Inc. | Injection electrical connector |
| US20190067861A1 (en) * | 2017-08-28 | 2019-02-28 | Jf Microtechnology Sdn. Bhd. | Low inductance electrical contact assembly |
| EP3685471B1 (en) * | 2017-09-22 | 2021-07-07 | Harting Electric GmbH & Co. KG | High-current connector comprising an insulating bush |
| CA3114686A1 (en) * | 2018-10-03 | 2020-04-09 | 3M Innovative Properties Company | Test point voltage sensor for high voltage separable connectors |
| CN113904156A (en) * | 2021-10-09 | 2022-01-07 | 深圳市银星联盟电力科技有限公司 | PT cable plug and connecting method thereof |
| CN114597681B (en) * | 2022-03-02 | 2024-05-17 | 运达能源科技集团股份有限公司 | 10KV medium-voltage cable connection assembly and method in tower barrel of wind generating set |
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- 2014-05-30 CA CA2853015A patent/CA2853015C/en active Active
- 2014-06-20 CN CN201410280312.2A patent/CN104253342B/en active Active
- 2014-06-25 EP EP14173976.3A patent/EP2824787A3/en not_active Withdrawn
- 2014-06-25 JP JP2014129868A patent/JP6140654B2/en not_active Expired - Fee Related
- 2014-06-26 MX MX2014007891A patent/MX341967B/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104253342A (en) | 2014-12-31 |
| EP2824787A3 (en) | 2015-11-25 |
| BR102014016102A2 (en) | 2017-12-26 |
| US9444176B2 (en) | 2016-09-13 |
| AU2014202779B2 (en) | 2016-03-17 |
| CA2853015A1 (en) | 2014-12-28 |
| TWI593184B (en) | 2017-07-21 |
| TW201509020A (en) | 2015-03-01 |
| MX2014007891A (en) | 2014-12-29 |
| US20150004843A1 (en) | 2015-01-01 |
| JP2015011992A (en) | 2015-01-19 |
| CA2853015C (en) | 2017-09-05 |
| MX341967B (en) | 2016-09-08 |
| JP6140654B2 (en) | 2017-05-31 |
| EP2824787A2 (en) | 2015-01-14 |
| AU2014202779A1 (en) | 2015-01-22 |
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